45results about How to "Avoid tipover accidents" patented technology

The invention relates to an ecological culture net cage capable of automatically sinking and floating to keep balance and relates to a culture net cage in the field of seawater culture equipment. The ecological culture net cage comprises a net cage frame which consists of buoyancy vertical pipes, top connecting pipes, bottom upper connecting pipes, bottom lower connecting pipes, internal tie bar pipes and ground anchors; a net cage sinking and floating system which consists of communicated air pipes, a head air pipe, air inlets / outlets and water inlets / outlets; and a net which consists of a top net, a bottom net, side nets and net ribs. The sinking and floating system is an automatic-balanced net cage sinking and floating system consisting of the buoyancy vertical pipes and air inlet / outlet valves and water inlet / outlet valves in the buoyancy vertical pipes, can realize the automatic-balanced sinking and floating of the net cage, is stable to be lifted up and lowered down and can prevent the net cage from getting turned upside down during sinking and floating. Since sea cucumber anti-wind and anti-wave adhering bases are arranged in the net, when heavy-wind and heavy-wave ocean currents are encountered, sea cucumbers can enter the adhering bases for inhabitation. Since a dual-layer net with a black inner layer and a light green outer layer is arranged and the internal part of the net is dark green, the net is particularly suitable for the growth habit of the sea cucumbers. The net cage has the advantages that the cultured sea cucumbers grow vigorously, the yield is high, the economic income of fishermen is good and the social benefit is remarkable.

The invention relates to a system and a method for monitoring the perpendicularity of a tower crane. The system comprises a tilt angle measuring device arranged on a slewing tower body, a rotation angle measuring device arranged on an upper bracket of the tower crane, and a display alarm device arranged on an operation panel in a cab, wherein the rotation angle measuring device is provided with a pinion meshed with a slewing gear ring, and the tilt angle measuring device and the rotation angle measuring device are connected with the display alarm device through cables; data measured by the tilt angle measuring device and the rotation angle measuring device are input to the display alarm device through the cables, and the display alarm device is used for processing and storing the data and displaying the data in real time. According to the system and the method for monitoring the perpendicularity of the tower crane, provided by the invention, the perpendicularity of the tower crane can be quickly, accurately and automatically measured and is displayed in real time. Even if the centerline of the tower body is a fold line, the perpendicularity can also be accurately measured.

The invention discloses a two-man ladle transportation vehicle, which relates to the technical field of a transportation vehicle and comprises a weighing system and a tilting prevention device, wherein the weighing system comprises a weighing sensor, an installing module, a weighing controller and a weight information display screen, the weighing sensor is arranged at the lower end of a two-man ladle platform of the two-man ladle transportation vehicle through the installing module, the weighing controller is respectively connected with the weighing sensor and the weight information display screen, and the tilting prevention device is arranged at the periphery of the two-man ladle platform. The invention provides a new transfer tool for the steel ladle transportation in a factory, and thetwo-man ladle transportation vehicle is improved, so the two-man ladle transportation vehicle has the weighing and tilting prevention function, a power storage battery device is used as motive power,the static hydraulic transmission is adopted, a lifting function and a multi-mode steering function are realized, the two-man ladle transportation vehicle belongs to a tire type transportation devicerealizing wireless communication of central control instructions and vehicle-mounted information, the two-man ladle transportation vehicle is environmental-friendly and does not cause pollution, and the conveyance work of magnesium chloride high-temperature melt is completed under the condition of ensuring the safety.

The invention discloses a looseness detecting method and a looseness detecting system for transmission shaft couplers of a rotary furnace, wherein the looseness detecting method specifically comprises the following steps: calculating braking time between different motors by a programmable controller; comparing the braking time with a preset comparison time set value; and then determining the connection state of the shaft couplers with a transmission. The invention further provides a transmission system of a rotary furnace body, which comprises an operation table, and the programmable controller, frequency converters, encoders, motors, the shaft couplers, the transmission and a transmission object which are orderly connected with the operation table, wherein the programmable controller further controls a brake through a contactor; the transmission system further comprises a conversion distributor; an input end of the conversion distributor is connected with output ends of the encoders; an output end of the conversion distributor is connected with the corresponding frequency convertor and the programmable controller, respectively; and the brake is arranged on two sides of the transmission. When a certain shaft coupler is loosened, an alarming signal for looseness of the shaft coupler is sent, thereby realizing online automatic detection of the looseness of transmission shafts.

The invention discloses a buoyant riser of a high frame cage-type ecological breeding net cage, and relates to a seawater breeding net cage. The buoyant riser of the high frame cage-type ecological breeding net cage comprises a riser body, a top pipe cap, a bottom flange plate, an arc chamber roof, and an arc chamber bottom, an intake and exhaust port of the chamber roof, and a water intake and discharge port of the chamber bottom, wherein the riser body is heightened to 2-6M; a cone-basin-shaped divider is arranged inside a pipe cavity; a first aerating through hole is formed in one side of the center of the divider; a first pressure one-way valve is connected below the first aerating through hole; or a second aerating through hole is formed in the pipe wall of one side below the divider; a second pressure one-way valve is externally connected with the second aerating through hole; and sealed floating balls are respectively arranged inside an upper pipe cavity and a lower pipe cavity. The buoyant riser has the beneficial effects that the height is increased; the height and the volume of the net cage are increased; a plurality of layers of medium nets can be arranged to increase the breeding quantity; or fishes which can not be raised in the existing cage can be raised. Therefore, the culture benefit is greatly improved. The cone-basin-shaped divider is arranged inside the pipe cavity; and the upper pipe cavity and the lower pipe cavity are orderly aerated and discharged through the aerating through hole and the pressure one-way valves. Therefore, the accumulation of pressure difference caused by aerating and discharging difference of each buoyant riser in the up and down process can be effectively reduced and avoided; and a tilting accident of the net cage in the floating process is also avoided.

The invention provides a tower body top inclination diagnosis device for a tower crane and a diagnosis method of the tower body top inclination diagnosis device. The device comprises a hold hoop for holding a slewing tower limb of a tower crane, a pair of fixing columns, an inclination sensor and a display recording alarm device, wherein the fixing columns are connected with two ends of the hold hoop, the inclination sensor is connected with the other ends of the fixing columns, and the display recording alarm device is electrically connected with the inclination sensor which is provided with a clamping port for clamping the slewing tower limb of the tower crane. The inclination sensor is mainly used for measuring the tower body top inclination, and is clamped on the slewing tower limb of the tower crane through the clamping port and connected with the hold hoop through the fixing columns; and the display recording alarm device 7 makes a sound-light alarm, controls a hoisting circuit and simultaneously records overload information when serious overload occurs.

The invention discloses a three-fulcrum anti-overturning protecting device for a pile frame, which comprises a vertical column (14) and a platform (15). One ends of two extending auxiliary pull rods are respectively hinged to the lower portion of the vertical column (14) in a floating mode, the other ends of the two extending auxiliary pull rods are respectively hinged to the platform (15) in a floating mode, the two extending auxiliary pull rods are respectively located on two sides of the vertical column (14), and the two extending auxiliary pull rods and the vertical column (14) form a three-fulcrum support having a protecting function. The three-fulcrum anti-overturning protecting device for the pile frame has a protection effect on the pile frame and prevents the pile frame from being overturned, severe damage to mechanical equipment is avoided, most importantly, the protecting effect on life safety of staff is achieved, and the protecting device is welcome by wide users and has positive effects on companies and the society.